CN101193447B - Relocation controlling apparatus in wireless communications network - Google Patents
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- 238000013500 data storage Methods 0.000 description 9
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- H—ELECTRICITY
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention relates to a relocation controlling apparatus in wireless communications network. A storing device stores a list composed of a plurality of pieces of identification information corresponding to a plurality of access service networks. A controlling device starts a relocation process for changing an access service network connected to a connectivity service network to an access service network at a relocation destination if target information, which is specified by a handover request accompanying the shift of a mobile station and which indicates the access service network at the relocation destination, is not included in the list.
Description
Technical field
The present invention relates to be used for to be controlled at that cordless communication network is followed moving of mobile radio station and device that the reorientation (relocation) that takes place is handled.
Background technology
WiMAX (micro-wave access to global intercommunication) is based on the wireless signal transmission techniques with IEEE (IEEE) 802.16 standardized wireless transmitting systems.Utilize this technology, user terminal can pass through microwave access wireless base station (BS), and system can be general mutually in the world.
In the WiMAX system, network insertion supplier (NAP) is provided for carrying out via one or more access service network (ASN) device of wireless access for the user.In addition, Internet service provider (NSP) provides various types of services for the user, and these services comprise via the Internet protocol of connectivity serving network (CSN) (IP) and connecting.A plurality of CSN can a shared ASN.
Move being arranged between a plurality of Foreign Agents (FA) in a NAP territory as the mobile radio station (MS) of user terminal.If switching between a plurality of FA (handover) as mentioned above, anchor (anchor) access service network gateway (anchor ASN-GW) that then has a FA may lack its oneself resource, unless final FA moves.For this reason, it is essential being used for the trigger of mobile FA and device.
The sequence of " the MS Mobility Event Triggering a Network Initiated R3 Re-anchoring (PMIP) " of record among the NWG-Stage-2 that Fig. 1 shows at WiMAX Forum (non-patent literature 1).
Non-patent literature 1: " WiMAX End-to-End Network Systems Architecture (Stage 2:Architecture Tenets, Reference Model and Reference Points) ", WiMAX Forum, in March, 2006.
Reference point R1, R3, R4 and R6 are the notion points in following each interval.
R1: between MS and BS
R3: between ASN-GW and CSN
R4: between ASN-GW and ASN-GW (in the ASN-GW)
R6: between BS and ASN-GW
Service ASN-GW15 is the gateway that MS11 passes through its ASN that to insert, and target ASN-GW14 is the gateway of the ASN that is located in of reorientation purpose.Base station (BS) the 12nd is subordinated to the BS of target ASN-GW14.
The process of R3 re-anchoring is as follows in the sequence of Fig. 1.
(1)-(3) foundation of data path in the data path function 24 among the data path function 22 in BS12, the target ASN-GW14, the service ASN-GW15, the FA25 among the service ASN-GW15 and local agent (HA) 16 were finished ASN before carrying out the R3 mobility.
(4a) for the provided for radio resources management (RRM) based on the MS mobility event, the R3 re-positioning request does not directly send to PMIP (mobile agent IP) mobility manager from the RRM controller; But in when, the R3 mobility taking place triggering via ASN functional entity 13 with its transmission.
(4b) ASN functional entity 13 sends R3_Relocate.Request message as the R3 re-positioning request in suitable timing to target ASN-GW14.This message comprises the address of ID and the target FA23 of MS11.
In a single day (4c) receive R3_Relocate.Request message, the authenticator of target ASN-GW14/PMIP client computer 21 just sends it back the R3_Relocate.Confirm message that expression receives the R3 re-positioning request to ASN functional entity 13.
(5)-(8) authenticator/PMIP client computer 21 starts the FA grappling after sending R3_Relocate.Confirm message.Specifically, authenticator/PMIP client computer 21 is carried out MIP (mobile IP) registration.Adopt the address of ASN-GW14 or from the CoA of FA23 (Care-of Address) as CoA.CoA is as the IP address with the FA23 of the end points (endpoint) in the tunnel of HA16.
HA16 authenticates MIP Registration Request message (MN-HA authentication extension), and sends it back MIP Registration Reply message.HA16 checks that to being used for the authentication information of MN (mobile node)-HA authentication carries out buffer-stored when starting.
(9), (10) authenticator/PMIP client computer 21 sends the R3_Relocate.Response message, this message informing ASN functional entity 13 has been finished the R3 reorientation.After this, ASN functional entity 13 is carried out such as the operation that discharges GRE (generic route encapsulation) keyword and similar operations to discharge the R4 data path.
Fig. 2 illustration the R3 grappling.ASN32 and 33 are arranged in NAP territory 31.ASN-GW34 and BS35,36 are arranged in ASN32, and ASN-GW37 and BS38 are arranged in ASN33.Simultaneously, in NSP territory 41, CSN42 is arranged, HA16, DHCP (DHCP) server 43 and H-AAA (local authentication, mandate and charging) server 44 is arranged in CSN42.
At first, MS11 is connected to HA16 via the BS38 of ASN33, FA in the ASN-GW37 and the FA in the ASN-GW34, shown in solid line.Like this, ASN-GW34 is corresponding to the anchor ASN-GW that is connected to HA16, and ASN-GW37 is corresponding to target ASN-GW14.
Trigger if the R3 mobility takes place, then according to the sequence shown in Fig. 1, anchor ASN-GW changes into ASN-GW37 from ASN-GW34.After this, MS11 is connected to HA16 via the FA in BS38 and the ASN-GW37, and is shown in dotted line.
Under the situation of IPv4, make and to new FA re-anchoring takes place from current FA, use Binding Update or MIP heavily to register subsequently and upgrade the upstream/downstream data path.
Trigger as the R3 mobility, can consider the mobility of MS11, the optimization of Internet resources etc.In all cases, setting up R6 and R4 data path and do not carrying out that mobility starts the ambulant handover operation of R3 after finishing in the ASN that CoA upgrades.
Following patent documentation 1 relates to the changing method in the mobile IP network.
Patent documentation 1: TOHKEMY 2005-323391 communique.
Above-mentioned conventional R3 relocation process has following problem.
Non-patent literature 1 is not described the R3 mobility clearly and is triggered (Fig. 1 (4a)), and its indication ASN functional entity sends the timing of R3_Relocate.Request message.Therefore, do not know when structure WiMAX system regularly to start the R3 relocation process at which.In addition, NWG-Stage-3 does not relate to this timing yet, and CMIP (client mobile IP) v4 and CMIPv6 are also similar.
Summary of the invention
The objective of the invention is to make be used for being enabled in and follow moving of mobile radio station and the triggering of the relocation process that takes place becomes clear such as the cordless communication network of WiMAX.
Relocation controlling apparatus according to the present invention comprises storage device and control device, this relocation controlling apparatus is controlled being connected between access service network in the communication network and the connectivity serving network, and described communication network obtains the described access service network of wireless access by mobile radio station and is used for constituting for described mobile radio station provides the described connectivity serving network that comprises the service of Internet protocol in being connected via described access service network.
Described memory device stores has a tabulation, and this tabulation is by constituting with corresponding many identifying informations of a plurality of access service network.If do not comprise in the described tabulation by the handoff request appointment of moving of following described mobile radio station and target identification information that indicated the access service network that the reorientation purpose is located in, then described control device starts relocation process, changes into the access service network that described reorientation purpose is located in the access service network that will be connected to described connectivity serving network.
Description of drawings
Fig. 1 shows the sequence of the R3 re-anchoring in the conventional WiMAX network;
Fig. 2 shows the R3 re-anchoring;
Fig. 3 shows the principle according to relocation controlling apparatus of the present invention;
Fig. 4 shows first relocation trigger;
Fig. 5 shows second relocation trigger;
Fig. 6 shows the 3rd relocation trigger;
Fig. 7 shows the quadruple orientation triggering;
Fig. 8 shows the 5th relocation trigger; And
Fig. 9 shows the sixfold orientation triggering.
Embodiment
Describe with reference to the accompanying drawings and be used to realize preferred implementation of the present invention.
Fig. 3 shows the principle according to relocation controlling apparatus of the present invention.Relocation controlling apparatus shown in Fig. 3 comprises storage device 101 and control device 102, this relocation controlling apparatus is controlled the connection between access service network in the communication network and the connectivity serving network, described communication network obtains the access service network of wireless access by mobile radio station and is used for constituting for mobile radio station provides the connectivity serving network of service via described access service network, and described services package purse rope border agreement connects.
In case receive the handoff request that comes from mobile radio station, control device 102 just obtains target identification information from this handoff request, and by using this target identification information to come search listing 103 as keyword.Do not comprise this target identification information if tabulate in 103, then control device 102 starts relocation process by using Search Results as triggering.
According to the present invention, when mobile radio station in such as the communication network (it comprises access service network and connectivity serving network) of WiMAX system during ongoing communication, it is clear that relocation trigger will become.Thereby, can be implemented in the sequence of R3 re-anchoring (PMIP/CMIPv4/CMIPv6) in the WiMAX system particularly, and telecom operators or other these class enterprises of carrying out the WiMAX business can easily construct the WiMAX system.
The execution of R3 relocation trigger and R3 relocation process is determined to realize via following method in the WiMAX system.
(1) R4/R6 handover trigger
The ASN functional entity determines whether to carry out the R3 relocation process by using R4/R6 to switch as the pattern (2) that triggers below utilizing, and sends R3_Relocate.Request message.Yet if ASN functional entity and PMIP client computer are included among the same ASN-GW, the PMIP client computer sends MIP Registration Request message based on the R3 relocation trigger.
(2) under the situation that MS is just communicating
If MS moves, then from the exchange of control messages that R4/R6 is switched, learn the identifying information (ID) of target ASN-GW in communication process.Anchor ASN-GW searches for the ASN-GW ID tabulation that is provided with by system default by using this ID in each ASN-GW as keyword.If do not comprise the ID of target ASN-GW in this tabulation, then by using Search Results to start the R3 relocation process as triggering.
In this tabulation, for example, be provided with the ID of a plurality of neighboring AS N-GW in the network topology.Do not shift the set by the BS of paging (paging) group appointment, but the tabulation of ASN-GW ID newly is provided, anchor ASN-GW can be positioned at the center of overlay area continuously thus.In this case, the R3 reorientation is rare.
In addition, even in described tabulation, comprise the ID of target ASN-GW, during in following factor in anchor ASN-GW, occurring any, also start the R3 relocation process.
(a) system congestion
(b) inadequate resource (MSID: the linking number excess)
(c) frequency band excess (R3 side service band excess)
(d) working service order calling/never calling to the R3 relocation process.
The specific embodiment of R3 relocation trigger is described below with reference to Fig. 4 to Fig. 9.
Fig. 4 shows the embodiment of the R3 relocation trigger of using above-mentioned ASN-GW ID tabulation.In this case, relocation trigger takes place according to following processes.
1. when system start-up, ASN-GW211 to 215 is provided for the ASN-GW ID tabulation 251 to 255 of R3 reorientation respectively as station data or system data in data storage cell 241 to 245.
IP address " 1.2.2.1 ", " 1.2.3.4 ", " 1.2.3.5 ", " 1.2.3.6 " and " 1.2.3.7 " are assigned the ID as them to ASN-GW211 to 215 respectively, and BS221 to 225 is connected with ASN-GW211 to 215 respectively.In addition, HA201 is connected to ASN-GW212.
2. if MS231 is moving shown in arrow 261 in the communication process, BS then on the other side changes into BS223 from BS222.At this moment, anchor ASN-GW212 receives the handoff request as target ASN-GW from the appointment ASN-GW213 of MS231, and the ID " 1.2.3.5 " that is included in the ASN-GW213 in the handoff request by use searches for ASN-GWID tabulation 252 as keyword.
In this embodiment, in ASN-GW ID tabulation 252, register " 1.2.2.1 " arranged, " 1.2.3.5 " and " 1.2.3.6 " as the ID of neighboring AS N-GW, in this tabulation, have " 1.2.3.5 ".Therefore, do not start the R3 relocation process.
3. then, if MS231 is moving shown in arrow 262 in the communication process, BS then on the other side changes into BS224 from BS223.At this moment, anchor ASN-GW212 receives the handoff request as target ASN-GW from the appointment ASN-GW214 of MS231, and searches for ASN-GW ID by the ID " 1.2.3.6 " that uses ASN-GW214 as keyword and tabulate 252.Because in the tabulation " 1.2.3.6 " arranged, so do not start the R3 relocation process.
4. then, if MS231 moves shown in arrow 263 at communication process, BS then on the other side changes into BS225 from BS224.At this moment, anchor ASN-GW212 receives the handoff request as target ASN-GW from the appointment ASN-GW215 of MS231, and searches for ASN-GW ID by the ID " 1.2.3.7 " that uses ASN-GW215 as keyword and tabulate 252.Because do not comprise " 1.2.3.7 " in the tabulation this moment, so start the R3 relocation process.
Particularly, anchor ASN-GW212 is operating as the ASN functional entity 13 among Fig. 1, and sends R3_Relocate.Request message to target ASN-GW215.By this relocation process, anchor ASN-GW changes into ASN-GW215 from ASN-GW212.
Fig. 5 shows the embodiment by the congested R3 relocation trigger that causes of said system.In this case, relocation trigger takes place according to following processes.
1. when system start-up, ASN-GW311 to 314 is provided with ASN-GW ID tabulation 351 to 354 respectively in data storage cell 341 to 344.
IP address " 1.2.2.1 ", " 1.2.3.4 ", " 1.2.3.5 " and " 1.2.3.6 " are assigned the ID as them to ASN-GW311 to 314 respectively, and BS321 to 324 is connected with ASN-GW311 to 314 respectively.In addition, HA301 is connected to ASN-GW312.
2. if MS331 is moving shown in arrow 361 in the communication process, BS then on the other side changes into BS323 from BS322.At this moment, anchor ASN-GW312 receives the handoff request as target ASN-GW from the appointment ASN-GW313 of MS331, and the ID " 1.2.3.5 " that is included in the ASN-GW313 in this handoff request by use searches for ASN-GWID tabulation 352 as keyword.
In this embodiment, in ASN-GW ID tabulation 352, register " 1.2.2.1 " arranged, " 1.2.3.5 " and " 1.2.3.6 " as the ID of neighboring AS N-GW, in this tabulation, have " 1.2.3.5 ".Therefore, do not start the R3 relocation process.Anchor ASN-GW312 stores the ID " 1.2.3.5 " of target ASN-GW313 in data storage cell 342.
3. then, if MS 331 is moving shown in arrow 362 in the communication process, BS then on the other side changes into BS324 from BS323.At this moment, anchor ASN-GW312 receives the handoff request as target ASN-GW from the appointment ASN-GW314 of MS331, and searches for ASN-GW ID by the ID " 1.2.3.6 " that uses ASN-GW314 as keyword and tabulate 352.Because in the tabulation " 1.2.3.6 " arranged, so do not start the R3 relocation process.Anchor ASN-GW312 stores the ID " 1.2.3.6 " of target ASN-GW314 in data storage cell 342.
4. then, if when MS331 just communicates in anchor ASN-GW312 generation systems congested, then the ID " 1.2.3.6 " that stores by use of anchor ASN-GW312 starts the R3 relocation process.Thereby anchor ASN-GW changes into ASN-GW314 from ASN-GW312.
Fig. 6 shows another embodiment of the R3 relocation trigger that is caused by system congestion.In this case, relocation trigger takes place according to following processes.
1. each ASN-GW is termly via other ASN-GW switching system information in R4 and the ASN-GW ID tabulation.This system information comprises the information of the state of indication such as system congestion exist/not existing.
IP address " 1.2.2.1 ", " 1.2.2.2 " and " 1.2.2.3 " are assigned the ID as them to ASN-GW411 to 413 respectively.BS421 and 422 is connected respectively to ASN-GW412 and 413.In addition, HA401 is connected to ASN-GW412, is provided with ASN-GW ID tabulation 451 in the data storage cell 441 of ASN-GW412.
If when MS431 just communicates in anchor ASN-GW412 generation systems congested, then anchor ASN-GW412 search ASN-GW ID tabulation 451, with seek wherein generation systems not congested be in ASN-GW under the normal condition.For example, if ASN-GW413 is in normal condition, then by using ID " 1.2.2.3 " to start the R3 relocation process as the ID of target ASN-GW.Thereby anchor ASN-GW changes into ASN-GW413 from ASN-GW412, and the BS relative with MS431 changes into BS422 from BS421.
Fig. 7 shows the embodiment of the R3 relocation trigger that is caused by above-mentioned inadequate resource.In this case, relocation trigger takes place according to following processes.
1. when system start-up, ASN-GW511 and 512 is provided with ASN- GW ID tabulation 551 and 552 respectively in data storage cell 541 and 542.
IP address " 1.2.2.2 " and " 1.2.2.5 " are assigned respectively to ASN-GW511 and 512 ID as them.BS521 and 522 is connected to ASN-GW511, and BS523 is connected to ASN-GW512.In addition, HA501 is connected to ASN-GW511.
2. if MS535 is moving shown in arrow 561 in the communication process, BS then on the other side changes into BS523 from BS522.At this moment, anchor ASN-GW511 receives the handoff request as target ASN-GW from the appointment ASN-GW512 of MS535, and the ID " 1.2.2.5 " that is included in the ASN-GW512 in this handoff request by use searches for ASN-GWID tabulation 551 as keyword.
In this embodiment, in ASN-GW ID tabulation 551, register " 1.2.2.1 " arranged, " 1.2.2.5 " and " 1.2.2.6 " as the ID of neighboring AS N-GW, in this tabulation, have " 1.2.2.5 ".
Then, anchor ASN-GW511 checks whether the resource of just using surpasses predetermined threshold.In this embodiment, MS531 to 534 is connected with anchor ASN-GW511 via BS521, and the quantity of the MSID that is connected has surpassed described threshold value.Therefore, start the R3 relocation process by the ID " 1.2.2.5 " that uses target ASN-GW512.Thereby anchor ASN-GW changes into ASN-GW512 from ASN-GW511.
Fig. 8 shows the embodiment of the R3 relocation trigger that is caused by above-mentioned frequency band excess.In this case, relocation trigger takes place according to following processes.
1. when system start-up, ASN-GW611 and 612 is provided with ASN-GW ID tabulation 651 and 652 respectively in data storage cell 641 and 642.
IP address " 1.2.2.2 " and " 1.2.2.5 " are assigned respectively to ASN-GW611 and 612 ID as them, and BS621 is connected with 612 with ASN-GW611 respectively with 622.In addition, HA601 is connected to ASN-GW611.
2. if MS631 is moving shown in arrow 661 in the communication process, BS then on the other side changes into BS622 from BS621.At this moment, anchor ASN-GW611 receives the handoff request as target ASN-GW from the appointment ASN-GW612 of MS631, and the ID " 1.2.2.5 " that is included in the ASN-GW612 in this handoff request by use searches for ASN-GWID tabulation 651 as keyword.
In this embodiment, in ASN-GW ID tabulation 651, register " 1.2.2.1 " arranged, " 1.2.2.5 " and " 1.2.2.6 " as the ID of neighboring AS N-GW, in this tabulation, have " 1.2.2.5 ".
Then, anchor ASN-GW611 checks whether the service band of R3 side surpasses predetermined threshold.The accumulation that this threshold value for example is based on effective band is provided with.If service band has surpassed this threshold value, then start the R3 relocation process by the ID " 1.2.2.5 " that uses target ASN-GW612.Thereby anchor ASN-GW changes into ASN-GW612 from ASN-GW611.
Fig. 9 shows the embodiment of the R3 relocation trigger that is caused by above-mentioned maintenance command.In this case, relocation trigger takes place according to following processes.
1. when system start-up, ASN-GW711 to 715 is provided with ASN-GW ID tabulation 751 to 755 respectively in data storage cell 741 to 745.
IP address " 1.2.2.2 ", " 1.2.3.4 ", " 1.2.3.5 ", " 1.2.3.6 " and " 1.2.3.7 " are assigned the ID as them to ASN-GW711 to 715 respectively, and BS721 to 725 is connected with ASN-GW711 to 715 respectively.In addition, HA701 is connected to ASN-GW712.
2. the keeper specifies the order of never calling the R3 relocation process to anchor ASN-GW712 input.
3. if MS731 is moving shown in arrow 761 in the communication process, BS then on the other side changes into BS723 from BS722.At this moment, anchor ASN-GW712 receives the handoff request as target ASN-GW from the appointment ASN-GW713 of MS731, and the ID " 1.2.3.5 " that is included in the ASN-GW713 in this handoff request by use searches for ASN-GWID tabulation 752 as keyword.
In this embodiment, in ASN-GW ID tabulation 752, register " 1.2.2.1 " arranged, " 1.2.3.5 ", " 1.2.3.6 " and " 1.2.3.7 " be as the ID of neighboring AS N-GW, in this tabulation, have " 1.2.3.5 ".
Then, whether the order of anchor ASN-GW712 inspection input is indicated and is called the R3 relocation process.Because stipulated to never call, do not start the R3 relocation process here.
4. then, if MS731 is moving shown in arrow 762 in the communication process, BS then on the other side changes into BS724 from BS723.At this moment, anchor ASN-GW712 receives the handoff request as target ASN-GW from the appointment ASN-GW714 of MS731, and searches for ASN-GW ID by the ID " 1.2.3.6 " that uses ASN-GW714 as keyword and tabulate 752.Because in the tabulation " 1.2.3.6 " arranged, whether the order of anchor ASN-GW712 inspection input is indicated and is called the R3 relocation process after the reason.Because stipulated to never call, do not start the R3 relocation process here.
5. the attendant specifies the order of calling the R3 relocation process to anchor ASN-GW712 input.
6. if MS731 is moving shown in arrow 763 in the communication process, BS then on the other side changes into BS725 from BS724.At this moment, anchor ASN-GW712 receives the handoff request as target ASN-GW from the appointment ASN-GW715 of MS731, and searches for ASN-GW ID by the ID " 1.2.3.7 " that uses ASN-GW715 as keyword and tabulate 752.Because have in this tabulation " 1.2.3.7 ", call the R3 relocation process so whether the order of anchor ASN-GW712 inspection input indicates.
Because stipulated here to call, so start the R3 relocation process by the ID " 1.2.3.7 " that uses target ASN-GW715.Thereby anchor ASN-GW changes into ASN-GW715 from ASN-GW712.
In above-mentioned preferred implementation, the IP address of adopting ASN-GW is as ID.Yet, can also adopt with corresponding other items of information of each ASN as ID.
Claims (10)
1. relocation controlling apparatus, this relocation controlling apparatus is used for being connected between communication network access service network and the connectivity serving network controlled, described communication network obtains the described access service network of wireless access by mobile radio station and is used for constituting for described mobile radio station provides the described connectivity serving network that comprises the service of Internet protocol in being connected via described access service network, and described relocation controlling apparatus comprises:
Storage device, it is used to store a tabulation, and this tabulation is by constituting with corresponding many identifying informations of a plurality of access service network; With
Control device, if do not comprise in the described tabulation by the handoff request appointment of moving of following described mobile radio station and target identification information that indicated the access service network that the reorientation purpose is located in, then this control device starts relocation process, changes into the access service network that described reorientation purpose is located in the access service network that will be connected to described connectivity serving network.
2. relocation controlling apparatus according to claim 1, wherein:
Described tabulation is made of the identifying information of a plurality of gateways, and described a plurality of gateways belong to described a plurality of access service network respectively; And
Described control device is searched for described tabulation by the identifying information of the gateway of the access service network that uses described reorientation purpose and be located in as described target identification information, if do not comprise described target identification information in the described tabulation, then described control device starts relocation process, is used for the gateway that is connected to the access service network of described connectivity serving network is changed into the gateway of the access service network that described reorientation purpose is located in.
3. relocation controlling apparatus according to claim 2, wherein:
Described tabulation by in network topology with described relocation controlling apparatus under the identifying information of gateway of the contiguous a plurality of access service network of access service network constitute.
4. relocation controlling apparatus according to claim 2, wherein:
If comprise described target identification information in the described tabulation, then described control device is stored described target identification information in described storage device, if and generation is congested in the gateway of the access service network that is connected to described connectivity serving network, then described control device starts relocation process by using the target identification information of being stored.
5. relocation controlling apparatus according to claim 2, wherein:
Described control device obtains exist/not have congested system information in described a plurality of gateways of indication in being included in described tabulation, if take place congestedly in the gateway of the access service network that is connected to described connectivity serving network, then described control device starts relocation process by using the access service network that does not take place in described a plurality of gateway under the congested gateway as the reorientation destination.
6. relocation controlling apparatus according to claim 2, wherein:
If comprise described target identification information in the described tabulation, whether the resource that then described control device inspection is used in the gateway of the access service network that is connected to described connectivity serving network surpasses a threshold value, if and used resource surpasses described threshold value, then described control device startup relocation process.
7. relocation controlling apparatus according to claim 6, wherein:
The quantity of the mobile radio station that described control device will be connected with the gateway of the access service network that is connected to described connectivity serving network checks as used resource.
8. relocation controlling apparatus according to claim 2, wherein:
If comprise described target identification information in the described tabulation, whether the employed frequency band of gateway that then described control device inspection is connected to the access service network of described connectivity serving network surpasses a threshold value, if and used band surpasses this threshold value, then described control device startup relocation process.
9. relocation controlling apparatus according to claim 2, wherein:
Described control device receives indication and calls or never call the command information of reorientation, if comprise described target identification information in the described tabulation then described control device is checked described command information, and if reorientation is called in the indication of described command information then described control device starts relocation process.
10. reorientation control method, this reorientation control method is used for being connected between communication network access service network and the connectivity serving network controlled, described communication network obtains the described access service network of wireless access by mobile radio station and is used for constituting for described mobile radio station provides the described connectivity serving network that comprises the service of Internet protocol in being connected via described access service network, and described reorientation control method may further comprise the steps:
By use by the handoff request appointment of moving of following described mobile radio station and indicated the target identification information of the access service network that the reorientation purpose is located in to search for a tabulation as keyword, this tabulation is by constituting with corresponding many identifying informations of a plurality of access service network; And
If do not comprise described target identification information in the described tabulation, then start relocation process, change into the access service network that described reorientation purpose is located in the access service network that will be connected to described connectivity serving network.
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| JP5226202B2 (en) | 2013-07-03 |
| EP1928142A3 (en) | 2008-07-09 |
| KR20080049605A (en) | 2008-06-04 |
| US20080132237A1 (en) | 2008-06-05 |
| EP1928142B1 (en) | 2011-11-23 |
| EP1928142A2 (en) | 2008-06-04 |
| KR100908185B1 (en) | 2009-07-16 |
| JP2008141374A (en) | 2008-06-19 |
| CN101193447A (en) | 2008-06-04 |
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